The total population of Mount Vernon is estimated to be 277 with 174 males (62.82%) and 103 females (37.18%). There are 71 less females than males in Mount Vernon.
In 2022, the population of Mount Vernon was 144, a 0.69% decrease year-by-year from 2021. Previously, in 2021, Mount Vernon's population was 145, a decline of 0.00% compared to a population of 145 in 2020.
The median age in Mount Vernon, AR is 45.4, as per 2021 ACS 5-Year Estimates. Of the total population, 19.11% were under the age of 15, 15.11% aged 15 to 29, 47.56% aged 30 to 64, 18.22% aged 65 to 84, and 0.00% were 85 years of age and older.